Charts: Explaining Cochran’s Win in Mississippi GOP Runoff

The Senate runoff in Mississippi for the GOP nomination turned in large part on a boost in turnout compared with the primary. In the counties that Sen. Thad Cochran won in the June 3 contest, the total number of votes cast increased by nearly 40,000 on Tuesday. That compares with an increase of about 17,000 in the counties that Chris McDaniel won in the first round. And Mr. Cochran’s margin in his home base of Hinds County nearly doubled. Of particular note are results from heavily African-American counties. Not only did turnout there increase, but so did Mr. Cochran’s margins.

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